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Human vision, visual correction, and visual science.

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Such A Thing as Toric RGP's...?

Reply from: toddster63
Date: 27 Apr 2008, 19:58
Such A Thing as Toric RGP's...?

Is there such as thing as toric RGP's, or do ALL rigid lenses only
correct for corneal astigmatism, by conforming the tear film into a
lens over the misshaped cornea?

I have almost exclusively lenticular astigmatism, and I wear soft
torics (Purevision), which correct fairly well--but after hearing
about the higher quality optics with RGP's, I am very curious about
"upgrading" my vision. My new OD says that due to my lenticular
astigmatism, my desires to wear the Macrolens or Synergeyes, or any
RGP's, are probably not going to work out well. He strongly suggested
that sticking with the soft torics--or any lens/eyeglasses with
cylinder correction--is the right ticket for those of us with pure
lenticular astigmatism... He said he was going to have to research
toric RGP's...

I am picky about my vision and would like to get vision with contacts
that is as good and crisp and clear as with my glasses...

Any feedback, suggestions, ideas are most appreciated...!



Reply from: Jan
Date: 27 Apr 2008, 22:42
Re: Such A Thing as Toric RGP's...?

toddster63 schreef:
> Is there such as thing as toric RGP's

There are several types of toric RGP's.
Front surface toric, back surface toric and combinations of them.

Nevertheless, these lenses could also (as in the soft toric lenses)
rotate to some degrees causing decrease in vision.

I assume you are best helped, when wanting RGP's, by fronttoric ones you
having an almost spheric shaped cornea surface.

Hope this answer helps,

Jan (normally Dutch spoken)




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